MTL - The Wrong Way to a Demon Sect Leader - Chapter 80

Sam Sanderson is envied by many for his job, however he himself didn't seem to like it much.

Due to his expertise in nanotechnology he was tasked with monitoring the state the Valkyries, humanity's strongest weapons who all just happen to be made into gorgeous females.

Forbidden from even touching any of them, Sam spends his days in agony watching flowers he couldn't hope to touch. However one day all of that seemed to change.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.

“H-Haru.... please... go...”In the midst of the sudden and ongoing Apocalypse, which had turned their lives into a complete hell, Haru embraced his loved one amidst the sadness and despair, watching helplessly as her bitten neck turned black.The person who meant the world to him was turning into a zombie, and he felt helpless to save her.“Why... Why... Why...” Tears fell as he held her tight, not wanting to let go. He was afraid, not of death or turning into something else, but afraid of losing her once more.Yet, amongst tears and desperation, a bit of unexpected hope appeared out for Haru.[Ting! Ting! Ting!][System has now finally initialized!!][Assigning a designated Class suited for the User!!][3][2][1][Congratulations! You acquired the EX Class – Zombie’s Husbando!!][First Quest – Choose a Zombie to be your Waifu!]